Malicious PDF — malware analysis report

Static analysis result for SHA-256 41d6eb2573dea051…

MALICIOUS

PDF

29.7 KB Created: 2020-05-02 17:45:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d2fe0cc57097efe8c6535c3bc311942 SHA-1: 092d6ae4b9afb5ac2bdcff9a967d9d11720c5751 SHA-256: 41d6eb2573dea0512c13e4019a3b8f5cef5b1a50bda2443d2e92e4fe7785b4ad
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results. The document body also contains one of these URLs, suggesting a direct attempt to redirect the user. No scripts were extracted, but the primary attack pattern involves directing users to external resources.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://severedlegproductions.com/uploads/1/3/0/8/130874120/130874120.html#making+comparisons+in+spanish+worksheets
    • http://wilcotrackandfield.com/uploads/1/3/0/4/130489742/6a8caf.pdf
    • http://sofievanoosthuyse.com/uploads/1/3/0/7/130776567/wefumonojatovu_napoji.pdf
    • http://beyondthedunescottage.ca/uploads/1/3/1/0/131069860/8686747.pdf
    • http://gspromocoeseventos.com/uploads/1/3/0/5/130588396/bajawozur-sofebopo.pdf
    • http://alfredstone.com/uploads/1/3/0/7/130740392/lefurag-lutujamazow-kederemefifora.pdf
    • http://servipacexpress.com/uploads/1/3/0/6/130620705/gudiferatite-zeroxuwinexojux.pdf
    • http://gaming-centrals-youtube-station.com/uploads/1/3/0/5/130588210/kujizezik.pdf
    • http://74-123-75-98.mgwnet.com/uploads/1/3/1/6/131606144/dovelexaka-gujefikabinop-gixenubade.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e51.bin
1a036ce47a5c614a1c5d8fa92b7a729e4917a8b2940751a378952d81910e6cd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E51 7744 bytes

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